Institutional Investor Baker Brothers Life Sciences Files Intent to Sell $5.5M in Protara Therapeutics Shares
TARA has more than doubled off its 52-week low of $2.77 on elevated volume (2.6× avg).
Summary
An institutional investor affiliated with Baker Brothers Life Sciences intends to sell over $5.5 million worth of Protara Therapeutics shares, potentially adding selling pressure.
Key Events · Ownership and Investor Activity · TARA
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Intent to Sell Significant Stake
Baker Brothers Life Sciences, L.P. filed a Form 144 to sell 947,479 shares of common stock.
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Substantial Transaction Value
The proposed sale has an approximate market value of $5,501,316.00.
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Affiliated Selling Activity
This filing is related to a separate Form 144 by affiliate 667, L.P., indicating a coordinated reduction in holdings by the Baker Brothers entities.
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Recent Sales History
In the past three months, Baker Brothers Life Sciences, L.P. has already sold 322,039 shares for gross proceeds of $1,944,922.00.
Analysis · TARA · Life Sciences
Baker Brothers Life Sciences, L.P., an institutional investor, has filed a Form 144 indicating its intent to sell 947,479 shares of Protara Therapeutics common stock, valued at approximately $5.5 million. This follows a related Form 144 filing by its affiliate, 667, L.P., on the same day, signaling a broader reduction in stake by these affiliated entities. While institutional investors often sell for portfolio rebalancing, the size of this proposed sale is notable and could create selling pressure on the stock.
How filings like this one have moved
In the 30 days to Sep 20, 2026, 29.4% of the 1574 measured filings Wiseek scored 7 moved their stock by 5% or more by the next session's close. The median move was -0.43%. These are measured outcomes after filings of this importance, not a forecast for this one.
Measured one observation per ticker per day, after exclusions. Current figures: Filing Impact Tracker · open dataset
At the time of this filing, TARA was trading at $6.04 on NASDAQ in the Life Sciences sector, with a market capitalization of approximately $307.7M. The 52-week trading range was $2.77 to $7.82. This filing was assessed with negative market sentiment and an importance score of 7 out of 10.